Five soldiers on extended patrol need to drink water but it is muddy. How many
iodine purification tablets should be used per canteen?
One calcium hypochlorite tablet per canteen.
d. One iodine tablet per canteen.
e. Two iodine tablets per canteen.
Orthotolidine, when added to water containing chlorine, produces a
What color is produced if orthotolidine is added to water containing chlorine that
has already reacted with sodium arsenite? ________________.
The modified OTA method has been replaced by the ________ method.
In the DPD method, a _________________ is used in place of a free available
In determining the pH with the color comparator, for what does the blank tube
What is the required total disinfection time in checking for chlorine residual in a
canteen or a Lyster bag? _________________________.
How many tincture of iodine drops should be used to disinfect a one-quart
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